Finding the Fourth Proportional to 9,886.56, 13,632.24 and 7,398.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886.56 : 13,632.24 = 7,398.24 : x
2. Step 2: Convert to fraction form
   9,886.56/13,632.24 = 7,398.24/x
3. Step 3: Cross multiply
   9,886.56x = 13,632.24 × 7,398.24
4. Step 4: Simplify right side
   9,886.56x = 100,854,583.26
5. Step 5: Solve for x
   x = 100,854,583.26/9,886.56
6. Step 6: Final answer
   x = 10,201.18